Electropolymerization of metallo-octaethylporphyrins: a study to explore their sensing capabilities

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dc.creatorClésia Cristina Nascentes
dc.creatorIvette Aguilar
dc.creatorGuzmán Gil-Ramírez
dc.creatorJose Gonzalez-Rodriguez
dc.date.accessioned2025-04-08T19:45:17Z
dc.date.accessioned2025-09-08T23:37:55Z
dc.date.available2025-04-08T19:45:17Z
dc.date.issued2022-09-23
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.3390/ma15196598
dc.identifier.issn1996-1944
dc.identifier.urihttps://hdl.handle.net/1843/81394
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofMaterials
dc.rightsAcesso Aberto
dc.subjectPolimerização
dc.subjectRaman, Espectroscopia de
dc.subjectPorfirina e compostos de porfirina
dc.subjectEspectroscopia de ultravioleta
dc.subjectAnalise eletroquimica
dc.subjectBarbituricos
dc.subjectEletrodos
dc.subjectFilmes metalicos
dc.subjectQuímica analítica
dc.subject.otherElectropolymerization
dc.subject.otherRaman
dc.subject.otherMetallo-octaethylporphyrins
dc.subject.otherUV-Vis
dc.subject.otherPhenobarbital
dc.titleElectropolymerization of metallo-octaethylporphyrins: a study to explore their sensing capabilities
dc.typeArtigo de periódico
local.citation.issue19
local.citation.spage6598
local.citation.volume15
local.description.resumoThe electropolymerization of metallo-octaethylporphyrins (OEP) containing copper, zinc or nickel metal were performed using cyclic voltammetry at three different potential ranges. The electropolymerized porphyrins were characterized by UV-Vis and Raman spectroscopies and the Soret band (393–445 nm) and Raman bands were used to assess the degree of electropolymerization obtained. The application for an analytical use of the modified electrodes to determine phenobarbital in aqueous solution was evaluated. The electropolymerized CuOEP produced at potentials ranging from 0.0 to 2.2 V was the best performer with a limit of detection (LoD) of 10 mg L−1 (43.07 µM), a linear range of 10–150 mg L−1 (43.07 to 646 µM), an average precision of 4.3% (%RSD) and an average % recovery of 101.34%. These results indicate that the CuOEP-modified electrode is suitable for the analysis of phenobarbital in human samples, as the concentration range varies from 10 to 40 mg L−1 (43.07 to 172.27 µM), typically found in antiepileptic treatments, to those at the toxic level (172–258 µM) or lethal levels (345–650 µM).
local.identifier.orcidhttps://orcid.org/0000-0002-8514-442X
local.identifier.orcidhttps://orcid.org/0000-0001-7945-2533
local.identifier.orcidhttps://orcid.org/0000-0003-2059-3571
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.mdpi.com/1996-1944/15/19/6598

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